Concrete Formwork Design
Lateral pressure (ACI 347): P = 150 + 9000R/T (max 150h or 2000 PSF)
Where: R = pour rate (ft/hr), T = temp (F), h = form height (ft)
- Plyform: Best surface finish, 3-5 reuses with form oil
- Studs: 2x4 at 12-16" O.C. for walls up to 8 ft
- Ties: Snap ties or she-bolts at 24" O.C. typical
- Braces: Diagonal kickers at 6-8 ft spacing